| 摘要 |
PCT No. PCT/JP94/02240 Sec. 371 Date Jul. 26, 1995 Sec. 102(e) Date Jul. 26, 1995 PCT Filed Dec. 27, 1994 PCT Pub. No. WO95/18237 PCT Pub. Date Jul. 6, 1995In tapping method in which molten iron (16) and molten slag (18) are discharged from a blast furnace, a conducting pipe (30) is connected to the external side of a molten iron taphole (12), and an electromagnetic energy supply body (32) is disposed around the outer periphery of the conducting pipe (30), whereby a turning motion or a magnetic pressure due to an electromagnetic repulsive force to the molten iron flowing in the conducting pipe (30) for separating the molten iron (16) from the molten slag (18) thus controlling the discharge rates thereof. With this tapping method, it becomes possible to keep substantially constant the discharged amounts of molten iron and molten slag from the blast furnace during a period from the starting to the completion of the tapping and significantly reduce the number of drilling/blocking upon tapping, and hence to stabilize quality of products and save the tapping work.
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